Improvement in car-ventilators



J. J.` CROWLEY.

Gar-ventilators.

N0.135,971, PatentedFeb.18,187s.

PATENT JOHN J. CROWLEY, OF WHIsrLnn, ALABAMA.

l IMPROVEMENT IN CAR-VENTILATORS.

Specification forming part of Letters Patent No. 135,971, dated February 1S, 1873.

To all whom it 'may concern:

Be it known that I, J OHN J. CROWLEY, of WHISTLER, in the county of Mobile and State of Alabama, have invented a new and Improved Car-Ventilator, of which the following is a specification:

My invention consists of two Ventilatingpipes, a fan-blower, a conducting-pipe, a distributing-pipe, and a system of valves, all combined in a car in such manner that the fan-blower, Which is driven by a belt from a a pulley on one of the car-aXles, will force a blast of air into the car, no matter which Way it runs, it being'only necessary to shift the valves when the direction of the movement of the car is reversed.

Figure l isa longitudinal sectional elevation of a car, with Vmy improved ventilating apparatus applied to it; Fig. 2 is a horizontal section taken on the line a: a: of Fig. 1, with a fragment of the distributing-pipe shown in plan view or in its norma-l position, and Figs. 4, and 5 are sections of some of the parts to show the details.

Similar letters of refereneejindicate corre-` sponding parts.

A represents the frame of the car-body. B-

is a long distributing-pipe extending from-end to end in the highest part, with perforations in the under side through which the air is to be delivered into the car. C is a conductor, through which the air is conducted from pipes I), E, and F, 'and from the fan G to the distribnting-pipe.

H is a funnel-mouthed ventilating-pipe extending from abovethe top of the car do\vn to pipes D and F. I is another funnel-shaped ventilator,extending from above the top of the car to pipes D and E. These funnels front in opposite directions, so that one receives the air when going one Wa-y,

by shifting the bar O in -one direction-say, doWn-a passage `will be opened from pipe H down through pipe F and fan G, and up through pipes E, D, C, and B, the valves K and N being closed, and the others being Y opened, and the escape through I being stopped. This will be the adjustment when `the car is to move to the right, and by shifting the bar O in the other direction-say, npA the escape through H will be prevented by the closing of .valve L, and apassage from I,

down through pipe E, fan Gr, and up through pipes F, D, C, and B will be Opened to introduce the air when the car is moving to the left. The fan is turned by one ofthe car-axles P, to which it is connected by belts Q B., and a countershaft, S, With suitable pulleys, so that its motion is reversed by the reversing Vofthe car, suitably for receiving the air from the ventilators fronting in the direction in which the car moves. The countershaft S has one fast and one loose pulley, and a belt-shifter, T, with a bell-crank, U, and handle V, are arranged With the belt R, so that the fan can be set in motion or stopped at will by one in the car.

To apply this Ventilating apparatus to cars already in use, We have a driving-pulley, W,

for applying to the car-axle, made in halves, v

ducting-pipes E F D (l, distributing-pipe 13,'

valves K, L, M, and N, and a fan-blower, substantially in the manner described.

JOHN J. CROWLEY.V

' Witnesses:

W. P. HENDON, L. P. WRIGHT. 

